Anyone running a straight pipe 2x2'' cat back (no X, H or Y), just two parallel pipes with stock style single muffler at the end? It's supposed to produce the biggest gains with NA engine (+11hp for DE).
Did invidia ever make such cat back systems?

 

What an exhausting day.... 3rd one this morning.

Invidia Gemini is closest to that but there are resonators at the Y-pipe and dual rear canister mufflers (transverse oriented) at the rear. Oh, and they're 60mm pipes, not 50 per your spec.

370Z type systems dump into a single with dual inlets/outlets at the rear but there's resonators and other stuff between the Y and rear. No, they don't fit without fab. (Nothing horrendously difficult - hangers and the like moved around I think but hardly worth the effort when there's about 6,117 plug n' play systems built for Z33 already.

If you think you want this though, just have it fabbed up at a muff shop.

 

So are there no plug and play aftermarket exhaust like that for the Zed? It has to be custom built?

EDIT: Looks like Invidia did make them: G200!